Abstract: A press-in fastening apparatus and method couples a screw with a nut by pushing the screw through an opening of the nut along a slip axis and rotating the nut to align a lock axis with the inserted screw. The opening of the nut along the slip axis has a diameter greater than the diameter of the screw and the opening of the nut along the lock axis has a diameter that engages screw threads with nut threads. In one embodiment, the nut is disposed in a housing coupled to an information handling system and biased to align with the lock axis so that a module is secured to the information handling system by aligning a screw coupled to the module with the nut and pushing the screw into the nut. The module is removed from the information handling system by unscrewing the screw with engagement of the screw threads and nut threads.

Abstract: A metal gasket is designed so that mounting and removal from a cylinder block using a bolt is easy regardless of the direction of the attaching surface and there is no risk of moving or drop off. The gasket is made of two laminated metal base plates. At a base plate part near a bolt hole of one metal base plate, a bolt engaging piece projects so that the diameter of the bolt hole is smaller than the diameter of the bolt for fastening, and an assistant piece for handling is integrated thereto. At the base plate part of the other plate overlapping the assistant piece, a cut recess is formed. When inserting the bolt into the bolt hole of the metal gasket, the bolt engaging piece is struck against the bolt and is elastically bent, and allows the bolt to pass. The gasket mounted on the bolt is kept at the mounting position by the pressing action to the bolt from the impact resilience force of the bolt engaging piece.

Abstract: A plastic fastening element is configured to be fastened on a threaded bolt welded to a support member. The fastening element includes a first hollow element portion made of plastic material and having an axial through hole. The through hole has a polygonal cross section and radially resilient wall portions that will be radially outwardly deformed if the first element portion is pushed onto the threaded bolt. The fastening element also includes a second hollow annular element portion which is connected to one end of the first element portion by a breakable connecting portion. The second element portion has an inner cross section dimensioned such that the second element portion can be pushed over the first element portion under radial deformation of the resilient wall portions, whereby a thread of the threaded bolt is partially formed into the resilient wall portions of the first element portion.

Abstract: A quick insertion fastener has an internally threaded first member (“nut”) adapted to be quickly attached and tightened on an externally threaded second member (“bolt”). The nut is formed with a casing with an internal frusto-conical front surface, a plurality of threaded shell segments contained in the casing having external frusto-conical front surfaces which abut the front surface of the casing, a spring member positioned at a rear part of the casing which elastically holds the rear ends of the shell assembly together, and an end retainer provided at the rear part of the casing having a taper for engaging the rear ends of the shell assembly and displacing them radially apart when the shell assembly is displaced axially toward the end retainer by insertion of the bolt. This allows the bolt threads to move without interference past the internal threads of the shell segments.

Abstract: A chopper for chopping continuous items like fiber, fiber strand, yarn, string, wire, tape or ribbon, etc. which enters the chopper in unwound form at a high linear speed is disclosed having improvements that permit the chopper to tilt to change the angle of discharge of the chopped item(s). Also disclosed is a fast acting roll retainer and a chopper having the fast acting roll retainer that permits a backup roll and a blade roll to be removed and replaced in a faster and less damaging manner. Methods of chopping and changing rolls on an apparatus using the disclosed apparatus are also disclosed.

Abstract: A mounting bolt for use in mounting toilet stools has upper and lower ends with an elongated threaded shank therebetween. An elongated planar head is on the lower end of the bolt and has a width similar to the diameter of the shank, and a longitudinal length larger than the diameter of the shank. The head has a center axis extending along its length. An indicia mark is on the upper end of the bolt visually indicating the position of the center axis to assist the placement and tightening of a threaded nut on the upper end when the position of the head is concealed when the nut is being threadably mounted on the upper end of the bolt.

Abstract: A connection element for a bolt and having a bolt-receiving member (1) the bore of which has a cylindrical receiving region (4) and a tapering, at least sectionally, in a direction opposite to an insertion direction (A) of the bolt (2), region (7) that adjoins the cylindrical receiving region (4) at its side facing in the direction opposite the insertion direction (A), a guide region (11) that adjoins the cylindrical receiving region (4) at its insertion direction side and has an inner diameter (d3) which at most corresponds to an outer diameter of the bolt; and at least one locking member (8) arranged in the bore (5), formlockingly engaging, at least partially, in the outer thread (3) of the bolt (2), and formed as a radially expandable ring body.

Abstract: A nut includes base portion forming an inner threaded bore and a first sun gear. cap forms a second sun gear of which the teeth is different from that of the first sun gear. The cap is rotatably mounted to the base with the first and second sun gears opposing and coaxial with each other. A control ring carries planetary gears engaging both the first and second sun gears. The nut secures a rotatable member of a rotary machine to a threaded driving axle. The nut is initially and loosely tightened on the axle by manually rotating the control ring. The cap has a high friction surface engaging the rotatable member. When the axle starts to rotate, a relative rotation occurs between the rotatable member and the axle which causes the cap to rotate with respect to the base. The rotation of the cap is transmitted to the base by the planetary gears to securely and completely tighten the nut.

Abstract: A screwed connection has a first connecting means with an external thread and a second connecting means with an internal thread. In order to avoid self-slackening of the screwed connection, the external thread has a denticulation (14-16) which interacts with a mating denticulation of the internal thread.

Abstract: An internally threaded, segmented nut and conical bore for a pressure vessel are used to make removal of studs securing covers over openings through the pressure vessel wall. The segmented nut has a conical upper surface to mate with a corresponding surface of the conical bore when the stud is threaded through the internal thread of the nut and a load is applied. The segmented nut is easily replaced and the stud is easily removable due to the shape of the nut and bore. The segmented nut eliminates drilling and rethreading the bore to repair damaged threads.

Abstract: The present invention provides a threaded fastening device assembly including an outer member having an upwardly extending and circumferentially disposed body with a non-threaded inner and outer surface, at least two inner members, each inner member having an internal surface which is threaded and an outer surface that is complimentary in shape to said inner surface of said outer member, wherein, said outer member is adapted to be slideably engageable with said inner members and wherein in use, said fastening assembly is rotatable and engageable with a complimentary threaded fastening shaft.

Abstract: A screwed connection has a first connecting means with an external thread and a second connecting means with an internal thread. In order to avoid self-slackening of the screwed connection, the external thread has a denticulation (14-16) which interacts with a mating denticulation of the internal thread.

Abstract: A quick mounting nut (2) movable, at least partially, without being rotated, axially to a threaded bolt (1), with a springing wire clip (4) being located in a nut housing (5) with a continuous coaxial opening (6), with the wire clip (4) at least partially engaging in a bolt thread (3) and having two legs (8, 8′) which spring relative to one another, with the opening (6) having an inner cone (7) which narrows radially from an axial neutral position of the wire clip (4) and with the wire clip (4) being movable axially to a limited extent and contacting at least partially inside the inner cone (7) in its locking position.

Abstract: A pin pulling device moves a member such as a pin or shaft by a non-pyrotechnic actuation force, such as a spring(s). The actuation member or spring(s) is (are) held in the compressed and loaded position by a release mechanism, such as an explosive bolt coupled to the member through a retainer. When activated by a signal, the release mechanism is severed from the retainer and the member is actuated by the force of the actuation member or compressed springs as the springs expand.

Abstract: A quick mounting nut (2) movable, at least partially, without being rotated, axially to a threaded bolt (1), with a springing wire clip (4) being located in a nut housing (5) with a continuous coaxial opening (6), with the wire clip (4) at least partially engaging in a bolt thread (3) and having two legs (8, 8′) which spring relative to one another, with the opening (6) having an inner cone (7) which narrows radially from an axial neutral position of the wire clip (4) and with the wire clip (4) being movable axially to a limited extent and contacting at least partially inside the inner cone (7) in its locking position.

Abstract: The disclosed fastener includes a body having a cavity therein and a wall at least partially surrounding said cavity. The fastener additionally includes a finger having a first member extending from the wall. The first member is attached to a second member having at least one engagement mechanism on its distal end adapted to cooperate with a second engagement mechanism on the stud to retain the fastener on the stud. The first member extends outwardly from the wall and the second member extends inwardly into the cavity. A plurality of fingers each include a lower surface angled upwardly toward the center of the cavity such that a stud contacting the lower surface will be moved toward the center of the cavity.

Abstract: A fastener for receiving a sink unit in a worktop has a plastics clip for attaching to a tab or rail and a hinged clamping member (11) which is tightened up against the underside of the worktop by a screw. The screw can be pressed through a bore in the hinge pin and self-tap into a non-threaded passage in the clip when the clamping member is hinged to engage under the worktop. The bore through the hinge pin has small flexible tags projecting into it past which the screw thread can snap, but which retain the screw when that is not engaged with the clip. The hinge pin and the clip have mutually engageable detents which locate the pin, and thus the clamping member, in either the operative position, for engaging the worktop, or the non-operative position with the clamping member swung back free of the worktop.

Abstract: The invention concerns a hold-down fastener including a barrel including internal lips cooperating with a screw thread, the lips being directed inwards of the barrel and inclined in a direction of insertion of the screw into the barrel. Each lip includes at least two parts, a first part connected to the barrel and inclined at a first angle relative to the barrel, on the side for inserting the screw, and a second part connected to the first part and inclined at a second angle relative to the barrel, on the side for inserting the screw. The second angle is larger than the first angle and less than 180° to facilitate the insertion of the screw into the barrel, while maintaining the fastener screw-holding power after the screw has been inserted. The invention is useful for fixing in place electric cables, piping systems, and other cylindrical articles.

Abstract: An automatic, self-energized, length extending, take-up unit for general use in wall hold down systems. The take-up unit is generally installed as a separate element, independent of threaded retaining elements of a hold down system. One embodiment includes an internal, preloaded, coil spring to rotate a threaded sliding member relative to a threaded base member, thereby to extend a height of the take-up unit. A trigger mechanism may be included to prevent unintended actuation of the unit. Additionally, a safety mechanism may be included to prevent inadvertent separation of a base member and a sliding member, thereby to prevent loss of a preload in an energizing spring.

Abstract: A toggle retainer for toggle connections of conveyor pans for chain scraper conveyers guide pans of mining machines conveyors etc with a securing plate (10) which engages across one of the locking extensions (8, 9) of a toggle and secures it in the accepting pocket (4), both ends (11, 12) of which can be inserted into an associated insertion pocket and retained therein by means of securing means (20) engaging through a locking hole (25, 26) in the insertion pocket and an accepting hole (14) in the securing plate (10). The securing means (20) comprise a sleeve-like deformable out outer part (21) especially from plastics material, with a reinforcing core (22) from harder material, especially a reinforcing core of metal.

Abstract: The present invention is a washer typically used in fastening insulation to a roof deck. The washer is secured to the deck by a securing member received through an opening in the washer. The washer is provided with a body having a top surface, a thickness dimension, and bottom surface having a substantially planar region. The body is further provided with an opening sized to permit a securing member to pass therethrough. A plurality of fingers are positioned around the opening on the bottom surface of the body. The fingers extend away from the bottom surface, the fingers being positioned around the opening and having at least a portion that extends over the opening. In yet another embodiment, the present invention is, in combination, a washer and a securing member received in an opening provided in the washer.

Abstract: A ratcheting fastener system such as for point of purchase displays. A bolt has a shank with a head end and a distal end, and a plurality of bolt threads on the shank, each thread having a thread start at the distal end. A nut has a bore with a plurality of thread segments in the bore adapted for engaging the bolt threads when axial force is applied to the bolt with the distal end inserted in the nut. Deflection of the nut thread segments occurs in controlled locations. The bolt and nut can be formed as a single unit connected by a frangible link.

Abstract: An adjustable-height stand that attaches to a device and allows for rough and fine adjustment of the height of the device. The stand has a screw rod, an adjusting mechanism, and a supporting mechanism. The supporting mechanism attaches to the device. The adjusting mechanism is connected to the supporting mechanism and the screw rod and has two states. In the fine adjustment state, the height is adjusted by turning the screw rod. In the rough adjustment state, the contact between the screw rod and the adjusting mechanism can be broken so that the supporting mechanism can slide up and down the length of the screw rod without turning the screw rod.

Abstract: An attachment clip (200) for a vehicle door latch assembly includes a first clip portion (102) with a first alignment member (118), a second clip portion (104) with a first alignment channel (122), and a resilient hinge (206) extending between the clip portions so as to allow the clip portions to close around an attachment member (40). The resilient hinge includes an alignment boss (228) integrally molded on the hinge and being disposed for engagement with one of the clip portions for forcing engagement upon closing of the clip portions.

Abstract: Fastening means comprising a threaded bolt preferably welded to a support member and a fastening element adapted to be fastened on the threaded bolt, the fastening means including the following features:

Abstract: An improved bolt/nut structure capable of preventing from dead locking and loosening and being vibration resistive, wherein, an internal threaded lining and an external threaded sleeve are made from helix springs with the cross section of each ring thereof in the shape of “]” and are used as an external thread and an internal thread for the bolt and the nut respectively to provide the function of dead locking and loosening and of vibration resisting. A plurality of expansion slits are provided on the internal and external peripheries of the helix springs, the springs with the expansion slits are suitable for use on the surface with collapsing of screw threads to suitably expand, and to confine the screw threads respectively. Moreover, a single or a plurality of helix springs are provided to form the internal threaded lining or the external threaded sleeve of one of various pitch gauges, thereby, the bolt structure has the capability of changing for the coarse and fine threads.

Abstract: An automatic, self-energized, length extending, take-up unit for general use in wall hold down systems. The take-up unit is generally installed as a separate element, independent of threaded retaining elements of a hold down system. One embodiment includes an internal, preloaded, coil spring to rotate a threaded sliding member relative to a threaded base member, thereby to extend a height of the take-up unit. A trigger mechanism may be included to prevent unintended actuation of the unit. Additionally, a safety mechanism may be included to prevent inadvertent separation of a base member and a sliding member, thereby to prevent loss of a preload in an energizing spring.

Abstract: A device for tightening a spout, attached to a previously installed angled pipe having an outside radius of curvature, in a position relative to a stop member having an opening through which at least a length of the pipe extends, comprising, at least one sleeve, comprises: at least a first leg and a second leg which meet at a juncture which defines an angle substantially corresponding to the angled pipe, wherein the first and second legs have a combined total length, wherein the first leg has a leg length and is substantially rigid along at least a portion of the leg length, has an inside radius of curvature that is approximately equal to or greater than the radius of curvature of the angled pipe, and wherein the sleeve has a slit, along the entire total length of the first and second legs, to allow the sleeve to be pressed onto and at least partially about the angled pipe; and a method for using the same.

Abstract: A three-sided, progressively-formed threaded fastener is comprised of a plurality of planar longitudinal faces intersecting at comer areas. Shank tabs extend downward from the bottom of each of the faces at the base of the fastener. Threaded regions along the inside surface of the planar faces are coined indentations applied during the formation of the fastener. A plurality of wedge-shaped protrusions extend downward from the comer areas at the base of the fastener. The combination of shank tabs and wedge-shaped protrusions form a clinch profile along the bottom of the fastener so that it may can be affixed to a sheet of metal by clinch fit.

Abstract: A nut assembly (10) for engaging an externally threaded bolt (12). Nut assembly (10) includes a cylindrical casing (16) and a nut (20) secured to cylindrical casing (16) projects a substantial distance from cylindrical casing (16) to permit rotation of nut assembly (10) by a suitable conventional wrench. Three internally threaded arcuate segments (28) are mounted within cylindrical casing (16) to engage external screw threads (14) on bolt (12). Detents (40) are formed integrally with cylindrical body (16) and project radially inwardly of the inner peripheral surface (24) of cylindrical casing (16). Detents (40) fit in grooves (41) in segments (28) to connect segments (28) for rotation with cylindrical body (16) and cap (20).

Abstract: A tension indicator for use with a fastener that is formed from a stack of conical washers confined in the stack by a cage having a longitudinally extending slot formed therein provides readily discernible visual indication of tension or loss of tension in the fastener joint. The indicator includes a body configured for receipt over the stack of conical washers. The body can include at least one stanchion extending inwardly of the body from the interior surface to define a stanchion end longitudinally spaced from the body end. At least one detent extends inwardly of the body and is longitudinally spaced from the body end. When the stack of conical washers is placed under tension with the uppermost washer in a planar condition, the stanchion lies adjacent the uppermost washer at the interior region.

Abstract: An automatic, self-energized, length extending, take-up unit for general use in wall hold down systems. The take-up unit is generally installed as a separate element, independent of threaded retaining elements of a hold down system. One embodiment includes an internal, preloaded, coil spring to rotate a threaded sliding member relative to a threaded base member, thereby to extend a height of the take-up unit. A trigger mechanism may be included to prevent unintended actuation of the unit. Additionally, a safety mechanism may be included to prevent inadvertent separation of a base member and a sliding member, thereby to prevent loss of a preload in an energizing spring.

Abstract: A threaded fastener for use with bolt comprises a housing having a central bore that includes a bolt insertion aperture and a plurality of cylindrical and frustoconical steps. A plurality of insert segments are placed within the central bore. Each insert segment includes an inwardly facing threaded portion and a front projection extending outwardly from the threaded portion. The front projection has a beveled edge arranged for sliding contact with a corresponding beveled portion of the housing. The front projection also has outwardly extending portion that cooperates with a ledge in the housing bore to limit longitudinal movement of the insert segment in the housing. A rear projection extends inwardly from the threaded portion and is arranged for sliding contact with a second beveled surface of the housing. An end cap retains the insert segments in the housing.

Abstract: The retaining element represented in the figures preferably includes of a receiver cage manufactured of hard elastic plastic, having an inner wall which may bear against a bolt, and a retaining arm formed on the side of the receiver cage opposite the inner wall to be elastically springy. The retaining arm is directed toward the opposite inner wall at an obtuse angle, counter to the press-down direction (A) of the receiver cage on the bolt, with the clearance of the retaining edge from the inner wall being less than the outer diameter of a bolt.

Abstract: A screw drive (10a) with rolling elements, optionally a ball screw drive, includes a screw spindle with a spindle axis (S) and a double nut (14a) running on the screw spindle, with two separately formed single nuts (16a , 18a) which are substantially rigidly joined in the direction of the axis (S) of the spindle. In order to set a desired play or bias relative to the screw spindle, the two single nuts (16a, 18a) can be turned continuously about the axis (S) of the spindle relative to each other and fixed in any relative rotary position corresponding to the desired play or bias. According to the invention, a first of the two single nuts or an intermediate element (28a) joined thereto and arranged between the two single nuts, as a first alternative, is welded to one of the two single nuts or to at least one part (42a) joined thereto or, as a second alternative, has at least one peripheral section pressed into an associated aperture in one of the single nuts.

Abstract: A quick-made connection for a stud (2; 22; 52) having a shaped outer profile (3; 23; 53), the connection including a receiving member (4; 24; 32; 42; 59) having a bore (5; 25; 33; 43; 54) in which the stud (2; 22; 52) is received, and at least one locking member arranged in the bore of the receiving member and formlockingly engageable in the shaped outer profile (3; 23; 53) of the stud (2; 22; 52), with the bore (5; 25; 33; 43; 52) having at least one section (9; 29; 34; 44; 55; 56) tapering toward an insertion opening of the bore, with the locking member (10; 30; 36; 46; 57; 58) being formed as a radially elastically expandable ring member preloaded against the wall of the bore and having an inner diameter (w) which is smaller than a bore diameter (d) at its entrance opening.

Abstract: A speed clamping nut to clamp the rim of a vehicle wheel on an end fitted with an outer thread of a shaft of a balancing machine, comprising a housing having at least one grip mounted in substantially radially manner to the housing, and an inside thread. A threaded component rotational about the screw axis of the speed clamping nut and relative to the housing is connected to the housing and comprises an inside thread and is connected with the drive side of a rotational drive system connected to the housing. Following engagement, the rotational drive system assumes the complex and time-consuming screwing-on procedure when the wheel rim is pulled against spring forces toward a centering cone.

Abstract: A spare-tire fastening structure is for fastening a spare-tire 1 to a support member (bracket 2) in a spare-tire receiving section. The fastening structure comprises a nut member 5 and a bolt member 9.

Abstract: The shelf support assembly includes an integral disk and shank with an aperture through the longitudinal axis thereof. A screw passes through the aperture. Flexible arms are formed around an opening in the disk formed by the aperture. The flexible arms engage the threads of screw during a pre-assembled position. However, the flexible arms deflect in response to axial urging of the screw thereby allowing the screw to move axially during the initial insertion of the screw into the pre-assembled position. This deflection further occurs in response to subsequent axial adjustment of the screw prior to installation, in response to the dropping of the shelf support assembly in the pre-assembled position thereby allowing the flexible arms to absorb a portion of the energy of the fall, and in response to the installation of the shelf support assembly into the mounting panel.

Abstract: A yarn roll spindle locking assembly including a pivotally translating engagement/release mechanism. The locking assembly may be dropped onto a spindle to self-actuatingly lock in position and is readily removable from the spindle by manual depression of a release element. The locking assembly includes upper and lower body members coupled to one another so that the upper main body member and lower main body member are resiliantly biased apart from one another to provide the locking assembly with compression/expansion capability.

Abstract: The clip of the present invention includes a plurality of internally threaded legs which form an aperture for receiving an externally threaded stud or similar structural device. A moveable circular collet is attached to a plunger and travels from a pre-driven position wherein the collet is substantially free from engagement with the internally threaded legs and allows for flexure of the internally threaded legs and a fully driven position wherein the collet engages the internally threaded legs in a locked position, inhibiting flexure and engaging the externally threaded stud.

Abstract: A locknut according comprises a C-shaped nut with a radial gap cut through one side. The locknut functionality is provided by making the threads of the nut undersize, by deforming the C-shape inward such that the internal threads are out of round until the nut is assembled on a screw, or by twisting the nut so as to axially displace the threads on opposite sides of the gap.

Abstract: An article has a tubular barrel (4) formed with a cavity and a catch (6) extending within a cavity window (5). A threaded rod (22) is adapted to be received in the cavity. In the absence of stress, the catch (6), in a rest position, has a wedge (12A) projecting inside the barrel (4). This wedge has a first inclined face (14) which faces the inlet opening (13) in the barrel and is inclined theretowards and towards the outside, and having a second face (15) which is opposed to the first and inclined in the opposite direction from the inlet opening (13) towards the outside. The catch (6) is adapted to tilt resiliently towards the outside when a force normal to the first inclined face (14) is applied thereto and to tilt resiliently inwards when a force normal to the second inclined face (15) is applied thereto. The article is used, when made of plastics material, with a threaded metal rod.

Abstract: A plastic snap nut is in the form of a molded plastic tubular member with a radially extending flange. The tubular member has a threaded bore and a slot formed through its wall into the bore. The slot width is slightly less than the diameter of the bore. The nut is sufficiently resilient, allowing it to be snapped onto an elongated threaded rod from the side at any location along the length of the rod, making it unnecessary to screw it on to the rod from one end thereof. Once secured, the threads on the nut engage the threads on the rod, allowing the nut to be repositioned by rotating it.

Abstract: A lock nut having a body member with a threaded axial bore and a washer having an axial opening coupled to a bottom end portion thereof so that the opening of the washer is aligned substantially with the threaded axial bore. The washer has one or more fingers with threaded finger tip portions partially defining the opening thereof. The threaded finger tip portions of the washer are in-phase helically with the threaded axial bore of the body member. A recess is disposed between the washer and the body member, and a protruding portion of the washer extends from the bottom end portion of the body member.

Abstract: A locking mechanism for a door, such as the door of a transformer enclosure, includes a rotatable threaded locking member secured to the door. The locking member is spring biased outwardly, and stationary engagement structure is provided for engaging the threaded locking member when the door attains a predetermined position as the door approaches its closed position. The engagement structure includes a pair of spaced apart engagement members, which are preferably threaded so as to engage the threads of the threaded member as the door is moved toward its closed position. The threaded locking member can than be pushed inwardly, and the engagement members are biased to provide a ratcheting mechanism to prevent the threaded locking member from being withdrawn from between the engagement members.

Abstract: A bolt-and-nut joint wherein the nut can be quickly relocated to an operative position on the bolt without deteriorating the locking function of the nut. In one aspect of the invention, a nut is provided with an axial slot extending through a wall of the nut. The width of the slot is somewhat smaller than the diameter of the bolt and the nut is produced of an elastic material that allows the nut to be snapped on and off the bolt via the slot at variable positions along the length of the bolt. The nut is tapered near one end for cooperation with a corresponding conical recess in a washer. The taper of the nut and the recess in the washer are chosen so that when the nut is tightened, the tapered part of the nut is wedged into the recess, urging the side walls of the nut to tighten around the bolt.

Abstract: A screw intended to be set in place and removed rapidly. The screw is characterized in that the threads are intended to take two positions: a first position wherein they project at the periphery of a body (1) and a second position wherein they are retracted into the thickness of the body (1). The screw further comprises a displacement member (27) intended to displace the threads from one position to the other and a device for locking the threads (29, 36, 27, 38) in the extended position.

Abstract: A conduit holder having a receptacle portion adapted to be mounted to a threaded bolt in one of two opposed positions. The receptacle area has a pair of spring tongues positioned between two pair of support lands. The bolts is inserted through one of a pair of opposed funnel shaped openings to engage a first pair of support lands with the threads of the bolt. The bolt deflects the spring tongues against the other pair of support lands and the top of the bolt is received in the opposite funnel shaped opening.

Abstract: A bolt positioning and retaining device possesses a base through which it is attached to a mud wall. The bolt positioning and retaining device also includes a stop, and may include one or more steps and corresponding step faces, each of which is capable of abutting an edge of a mud wall to enable accurate positioning of a bolt relative to that mud wall. The bolt positioning and retaining device also preferably includes a bolt retainer comprising a plurality of gripping flanges, which allow an anchor bolt to be quickly and easily inserted into the bolt retainer and which securely retain the bolt after insertion. The bolt retainer is located on an extension arm, which preferably extends outward from and at an angle to the plane of the base.